{
  "title":"CSS background-attachment",
  "description":"Method of defining how a background image is attached to a scrollable element. Values include `scroll` (default), `fixed` and `local`.",
  "spec":"https://www.w3.org/TR/css3-background/#the-background-attachment",
  "status":"cr",
  "links":[
    {
      "url":"https://developer.mozilla.org/en-US/docs/Web/CSS/background-attachment",
      "title":"MDN Web Docs - background-attachment"
    }
  ],
  "bugs":[
    {
      "description":"iOS has an issue preventing `background-attachment: fixed` from being used with `background-size: cover` - [see details](https://stackoverflow.com/questions/21476380/background-size-on-ios)"
    },
    {
      "description":"Chrome has an issue that occurs when using the will-change property on a selector which also has `background-attachment: fixed` defined. It causes the image to get cut off and gain whitespace around it. "
    },
    {
      "description":"Firefox does not appear to support the `local` value when applied on a `textarea` element."
    }
  ],
  "categories":[
    "CSS"
  ],
  "stats":{
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      "5.5":"a #1",
      "6":"a #1",
      "7":"a #1",
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      "9":"y",
      "10":"y",
      "11":"y"
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      "92":"y",
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    "safari":{
      "3.1":"a #1",
      "3.2":"a #1",
      "4":"a #1",
      "5":"y",
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      "11":"y",
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      "12":"y",
      "12.1":"y",
      "13":"a #1",
      "13.1":"a #1",
      "14":"n #5",
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      "15":"n #5",
      "15.1":"n #5",
      "TP":"n #5"
    },
    "opera":{
      "9":"a #1",
      "9.5-9.6":"a #1",
      "10.0-10.1":"a #1",
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    },
    "ios_saf":{
      "3.2":"n",
      "4.0-4.1":"n",
      "4.2-4.3":"n",
      "5.0-5.1":"a #2 #3",
      "6.0-6.1":"a #2 #3",
      "7.0-7.1":"a #2 #3",
      "8":"a #2 #3",
      "8.1-8.4":"a #2 #3",
      "9.0-9.2":"a #2 #3",
      "9.3":"a #2 #3",
      "10.0-10.2":"a #2 #3",
      "10.3":"a #2 #3",
      "11.0-11.2":"a #2 #3",
      "11.3-11.4":"a #2 #3",
      "12.0-12.1":"a #2 #3",
      "12.2-12.5":"a #2 #3",
      "13.0-13.1":"n #5",
      "13.2":"n #5",
      "13.3":"n #5",
      "13.4-13.7":"n #5",
      "14.0-14.4":"n #5",
      "14.5-14.8":"n #5",
      "15.0-15.1":"n #5"
    },
    "op_mini":{
      "all":"n"
    },
    "android":{
      "2.1":"n",
      "2.2":"n",
      "2.3":"n",
      "3":"n",
      "4":"n",
      "4.1":"a #1",
      "4.2-4.3":"a #1",
      "4.4":"n",
      "4.4.3-4.4.4":"n",
      "96":"n"
    },
    "bb":{
      "7":"a #2",
      "10":"a #2"
    },
    "op_mob":{
      "10":"a #1",
      "11":"y",
      "11.1":"y",
      "11.5":"y",
      "12":"y",
      "12.1":"y",
      "64":"n"
    },
    "and_chr":{
      "96":"y"
    },
    "and_ff":{
      "94":"y"
    },
    "ie_mob":{
      "10":"y",
      "11":"y"
    },
    "and_uc":{
      "12.12":"y"
    },
    "samsung":{
      "4":"n",
      "5.0-5.4":"a #4",
      "6.2-6.4":"a #4",
      "7.2-7.4":"a #4",
      "8.2":"a #4",
      "9.2":"a #4",
      "10.1":"a #4",
      "11.1-11.2":"a #4",
      "12.0":"a #4",
      "13.0":"a #4",
      "14.0":"a #4",
      "15.0":"a #4"
    },
    "and_qq":{
      "10.4":"y"
    },
    "baidu":{
      "7.12":"a #4"
    },
    "kaios":{
      "2.5":"y"
    }
  },
  "notes":"Most mobile devices have a delay in updating the background position after scrolling a page with `fixed` backgrounds.",
  "notes_by_num":{
    "1":"Partial support refers to supporting `fixed` but not `local`",
    "2":"Partial support refers to supporting `local` but not `fixed`",
    "3":"Only supports `local` when `-webkit-overflow-scrolling: touch` is _not_ used",
    "4":"Does not support `fixed`, and due [to a bug](https://bugs.chromium.org/p/chromium/issues/detail?id=627037) only supports `local` if a `border-radius` is set on the element.",
    "5":"Broken support of `fixed` and `local` when scrolling an outer scroll container. Related [to a bug](https://bugs.webkit.org/show_bug.cgi?id=219324)."
  },
  "usage_perc_y":76.69,
  "usage_perc_a":4.7,
  "ucprefix":false,
  "parent":"",
  "keywords":"",
  "ie_id":"",
  "chrome_id":"",
  "firefox_id":"",
  "webkit_id":"",
  "shown":true
}
